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CPC Subgroup
D06F 33/52

Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry

Full Title

Control of operations performed in washing machines or washer-dryers (D06F31/00 takes precedence; details of control systems therefor D06F34/00; control of operations performed in domestic laundry dryers D06F58/32) > Control of washer-dryers characterised by the purpose or target of the control > Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry

9 direct subcodes

Child Classifications

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  • D06F 33/54 of water filling
  • D06F 33/56 of washing
  • D06F 33/57 of metering of detergents or additives
  • D06F 33/58 of rinsing
  • D06F 33/60 of centrifugal separation of water from the laundry
  • D06F 33/62 of draining
  • D06F 33/65 of conditioning or finishing phases, e.g. for smoothing or removing creases
  • D06F 33/68 of the sequence of washing and drying operations

Top Applicants

Top 10 applicants by patent filingsfor class D06, 2013–2023, worldwide · Source: EPO PATSTAT

  1. LG ELECTRONICS KR 7,955
  2. QINGDAO HAIER WASHING MACHINE COMPANY 7,190
  3. HAIER SMART HOME 5,471
  4. QINGDAO HAIER WASHING MACHINE COMPANY CN 2,962
  5. BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 2,870
  6. WUXI LITTLE SWAN COMPANY 2,869
  7. SAMSUNG ELECTRONICS COMPANY KR 2,731
  8. MIELE DE 1,371
  9. WHIRLPOOL CORPORATION US 1,285
  10. ELECTROLUX APPLIANCES SE 1,261